It's pretty easy. The best thing is to think of yourself in a real WC race
car when you are racing N3 per exemple. You can easily know the limit of
your front bumper.
In the pits, slowly go forwards onto the rear of the parked AI. When you
finally bump his rear, notice where the bottom of the windshield ends
compared to the rear of his car. Bingo, you found the sweet spot that will
stay with you FOREVER in the sim. It's how you can successfully draft each
other bumper to bumper at 200mph. That's how they do in real life also FYI.
It's the same in GPL and how you can know where the front ends.
--
-- Fran?ois Mnard <ymenard>
-- May the Downforce be with you...
-- http://www.racesimcentral.net/
-- People think it must be fun to be a super genius, but they don't realise
how hard it is to put up with all the idiots in the world.